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    <title>ShellCheck: SC2169 – In dash, *something* is not supported.</title>
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    <h1>SC2169 – ShellCheck Wiki</h1>
    <a href="https://github.com/koalaman/shellcheck/wiki/SC2169">See this page on GitHub</a>
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    <h2 id="in-dash-something-is-not-supported">In dash, <em>something</em>
is not supported.</h2>
<p>You are writing a script for <code>dash</code>, but you're using a
feature that <code>dash</code> doesn't support. See <a
href="SC2039.html">SC2039</a>, the equivalent warning for POSIX sh, for
possible workarounds.</p>
<p>See also Ubuntu's <a
href="https://wiki.ubuntu.com/DashAsBinSh">DashAsBinSh</a> migration
guide for how to make bash-specific scripts dash-compatible.</p>
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    <p style='font-size: 80%'><a href="../index.html">ShellCheck</a> is a static analysis tool for shell scripts. This page is part of its documentation.</p>
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